Add QR pairing creation method
Add tests
Change Java comment to Python comment
Convert to fenced code blocks w language specified
Fix namespace of errors

They're in the `toopher` module--not the `ToopherIframe`
Convert from Java error to Python error

toopher-python: ERROR_CODE_USER_DISABLED = 704
toopher-java: public static final String USER_OPT_OUT = "704";
Test validate with immutable dict
Create a mutable copy of data to satisfy test
Remove debug breakpoint
Merge pull request #30 from toopher/issue/29-make-data-mutable

Issue/29 make data mutable
Merge develop
Merge pull request #26 from toopher/feature/qr

Add pair_qr for generating Toopher QR codes
Merge develop